Package com.itextpdf.pdfocr.onnx.recognition

Class StringMapper

java.lang.Object

com.itextpdf.pdfocr.onnx.recognition.StringMapper

All Implemented Interfaces:

IOutputLabelMapper<String>

Direct Known Subclasses:

EasyOcrMapper

       public class StringMapper extends Object implements IOutputLabelMapper<String>
      

Look-up table for mapping text recognition model results to strings.

If you only need to map indices to single UTF-16 code units, then consider using Vocabulary instead, as it is much more memory efficient.

Constructor Summary

Constructors

Constructor	Description
StringMapper(String lookUpString)	Creates a new string mapper based on a look-up string.
StringMapper(String[] lookUpTable)	Creates a new string mapper based on a look-up table.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
int	hashCode()
String	map(int index)	Returns character, which is mapped to the specified index in the lookup string.
int	size()	Returns the size of the string mapper.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

StringMapper

             public StringMapper
             (String lookUpString)
            

Creates a new string mapper based on a look-up string. Each code point is mapped to an index.

Parameters:

lookUpString - look-up string, that will be used to build a look-up table

StringMapper

             public StringMapper
             (String[] lookUpTable)
            

Creates a new string mapper based on a look-up table.

Parameters:

lookUpTable - look-up table to be used in the string mapper

Method Details

size

             public int size()
            

Returns the size of the string mapper.

Specified by:

size in interface IOutputLabelMapper<String>

Returns:

the size of the string mapper

map

             public String map
             (int index)
            

Returns character, which is mapped to the specified index in the lookup string.

Specified by:

map in interface IOutputLabelMapper<String>

Parameters:

index - index to map

Returns:

mapped character

hashCode

             public int hashCode()
            

Overrides:

hashCode in class Object

equals

             public boolean equals
             (Object o)
            

Overrides:

equals in class Object

toString

             public String toString()
            

Overrides:

toString in class Object